Stackable buoy



FIG. 1 is a front elevational view of a stackable buoy showing my new design; the left side, right side and rear views are identical to the front

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a cross-sectional view thereof as taken from lines 4—4 of FIG. 2; and,

FIG. 5 is a front perspective view thereof.

The ornamental design is characterized by the shape of the buoy having two concentric cylinders, the top cylinder is the smaller of the two; the bottom cylinder having a hollow cylindrical base of a dimension greater than that of the outside dimensions of the top cylinder. 

The ornamental design for a stackable buoy, as shown and described. 